Reel for motion-picture films.



H. GRAF.

REEL FOR MOTION PICTURE FILMS.

' APPLICATION FILED FEB. 14, 1917.

Patented NOV. 12, 1918.

' l/VVENTO A TTOR/V E Y WITNESSES:

UNITED STATES PATENT OFFICE.

EENEY GRAF, or TOLEDO, 01110, ASSIGNOR r0 AMERICAN CAN coMrA'NY, or NEW YonK, N. Y., A CORPORATION 0E NEW JERSEY.

REEL FOR MOTION-PICTURE FILMS.

Specification 01' Letters Patent.

Patented Nov. 12,1918.

To all whom it may concern:

Be it known that I. HENRY GRAF, a citizen of the United States. residing in Toledo, in the countv of Lucas and State of Ohio, have invented a new and useful Improvement in Reels for Motion-Picture Films, of which the following is a specification.

This invention relates in general to winding reels and has more particular reference to a reel provided for a motion picture film.

A principal object of the invention is the provision of a reel for this and other purposes adapted to have wound upon it a ribbon of motion picture film or other material, retaining means being provided to engage an end of said ribbon to wind in either direction without creasing said end.

A further important object is the provision of such a device, the retaining means of which may be readily replaced without unfastening or removing any of the other parts.

Other objects and advantages of the invention will be apparent as it is better understood from the following description when considered in connection with the accompanying drawing illustrating a preferred embodiment thereof.

On the drawing,

Figure 1 is a longitudinal section of a reel embodying my invention;

Fig. 2 is a section taken on the line 2-2 of Fig. 1;

Fig. 3 is an enlarged plan view of the barrel; and

Fig. 4 is a section taken on the line 4.-4= of Fig. 3. 1

Referring to the drawing, reference character 1 indicates a cylinder core'or barrel which. may be of any suitable material and which is attached to the side disks 2 and 3 through any suitable fastening device. A hollow sheet metal barrel for closely embracing this core and having a slot or opening of peculiar formation is provided, as indicated in Fig. 3. This slot or opening may of course be varied in shape but as shown on the drawing is wider at both sides of its in place.

longitudinal center to provide a pair of integral arms 8 and 9 extending toward each other. An end holding spring 6 of a diameter less than the diameter of the cylinder is engaged in this slot and is depressed cento bear against the end 11 of the film 14,

the extreme ends 12 and 13 of the spring being bent up to permit ready insertion of the end of the film beneath the spring. It will be manifest that the end of the film may be readily pushed under the end of the spring circumferentially of the reel in either direction and also that a damaged or worn out spring may be readily replaced with a new one without disturbing the remainder of the reel construction. The pressure of the reel upon the barrel is concentrated at points 10 and 11 and this pressure can be varied by varying the curvature or the nature of the material of the spring.

It is thought that the invention and many of its attendant advantages will be understood from the foregoing without further description.

I claim:

A sheet metal film reel having a sheet metal hollow cylindrical barrel, and a twoarmed spring, a portion of the barrel being cut away and leaving central. arms and the central portion of the two armed spring being widened laterally and engageable in said cut away portion, the said arms of said cut away portion extending over the widened part of the spring when the latter is in place.

Signed in the presence of two subscribing witnesses.

HENRY GRAF.

Witnesses:

L. W. BREEDE,

E. R. G. SULZLER. 

